Flexible Silicone Insulated Single Core Wire 300/500 V

This flexible silicone insulated single core wire is designed for reliable electrical connections in equipment exposed to high or low temperatures. Its tinned copper conductor and heat-resistant, halogen-free silicone insulation provide excellent flexibility, weather resistance and dependable performance from -40°C to +180°C in fixed installations.

Key Highlights

Flexible Class 5 tinned copper conductor · 300/500 V rated · Halogen-free silicone insulation · Temperature resistance up to +180°C · Short-time resistance up to +250°C · Low-temperature flexibility · Flame-retardant and self-extinguishing · Non-corrosive combustion gases · Excellent weather resistance · RoHS compliant · PFAS-free option

Application
Construction
Technical Data
Dimensions
Packaging

Suitable for internal wiring in lamps, lighting systems, heating appliances, switchboards, distribution equipment and industrial machinery.

Typical applications include:

Industrial ovens and heating systems
Smelteries, steelworks and hot-rolling mills
Textile and woodworking machinery
Paper manufacturing equipment
Electrical appliances and switchboards
High-temperature control and distribution equipment

Conductor: Flexible tinned copper strands, Class 5 according to IEC 60228 and EN 60228
Insulation: Heat-resistant silicone compound, EI2 type according to EN 50363-1
Standard colors: Green/yellow, blue, black, brown, grey, white and red
Special conductor sizes and insulation colors available on request

Nominal voltage: U₀/U 300/500 V
Testing voltage: 2000 V
Minimum bending radius: 7.5 × cable diameter
Fixed temperature range: -40°C to +180°C
Flexible temperature range: -25°C to +180°C
Short-time temperature: Up to +250°C
Radiation resistance: 2 × 10⁷ cJ/kg
Halogen-free performance: IEC 60754-1
Flame retardant and self-extinguishing: IEC 60332-1-2
Non-corrosive combustion gases: IEC 60754-2
Weather resistance: Very good
RoHS compliant
PFAS-free configuration available

Approximate outer diameters are subject to a tolerance of ±10%.

Cross Section (mm²)	Largest Single Wire Ø (mm)	Copper Weight (kg/km)	Approx. Cable Weight (kg/km)	Approx. Outer Ø (mm)
0.25	0.16	2.4	5	1.7
0.34	0.26	3.3	6	1.8
0.50	0.21	4.8	8	1.9
0.75	0.21	7.2	10	2.2
1.00	0.21	9.6	13	2.3
1.50	0.26	14.4	18	2.8
2.50	0.26	24.0	29	3.4
4.00	0.31	38.4	44	4.0
6.00	0.31	57.6	62	4.5
10.00	0.41	96.0	107	6.1
16.00	0.41	153.6	167	7.5
25.00	0.41	240.0	271	9.3
35.00	0.41	336.0	376	10.7
50.00	0.41	480.0	523	12.3
70.00	0.41	672.0	713	14.6
95.00	0.51	912.0	961	17.5
120.00	0.51	1152.0	1177	19.0
150.00	0.51	1440.0	1462	20.9
185.00	0.51	1776.0	1785	23.0
240.00	0.51	2304.0	2404	26.9
300.00	0.51	2880.0	2998	30.0

Other conductor sizes, colors and customized dimensions are available on request.

hulk packing

About Hulk Electric

THE FACTORY
BEHIND EVERY METER

Founded in 2007 in Foshan, Guangdong, Hulk Electric has grown from a regional producer into a globally recognised manufacturer of customised industrial cable solutions. Our 10,000㎡ facility runs on Toyota Production System lean principles, operated by 150+ skilled professionals producing over 300,000 metres every month.

Every cable you see on this page — including the HK-TRVV series — is engineered, extruded, tested, and shipped from that single facility. No trading company sits between you and the extrusion line.

20+Years Manufacturing

30+Countries Served

10K㎡Factory Floor

35+Certifications

About Our Factory Talk to an Engineer

Source Factory

Direct manufacturer — no middlemen, no markups. You deal with the engineers who run the line.

Deep Customization

Conductor, shielding, jacket compound, colour coding, certification — built to your exact spec.

7-Day Sampling

Rapid samples for new specifications. 15-day lead time on standard production orders.

Global Compliance

35+ certifications covering UL, CE, TÜV, IEC, RoHS and REACH for every major market.

Common Questions

BEFORE YOU ORDER

For stocked configurations listed in the ordering table, MOQ is 100 metres per specification. Custom configurations — non-standard core counts, jacket colours, or special compounds — carry a 500 metre MOQ. Samples of 5–10 metres are available free of charge for qualification testing.

Use shielded (P or PP suffix) whenever the cable runs alongside servo drives, VFDs, or inverters, or when carrying encoder, sensor, or analogue signals. Unshielded is suitable for pure power distribution and simple on/off control lines. If in doubt, our engineering team can review your cabinet layout and advise — this is included with any quotation.

Yes. Send us the existing part number or a sample and we will produce a cross-reference specification with matching electrical, mechanical, and dimensional characteristics. Most cross-references are turned around within 3 working days, with a physical sample following within 7 days.

Standard shipments include the CE Declaration of Conformity, RoHS and REACH statements, and the batch test report. UL Recognition (UL 2464 / UL 20549) is available on request for North American projects — specify this at the quotation stage as it affects the material specification.

Standard configurations ship in 15 working days from order confirmation. Custom-engineered specifications typically require 20–25 working days, depending on compound availability. Rapid sampling for new specifications is 7 days. We will confirm the exact date in writing with your order acknowledgement.

Get a Quotation

SEND US YOUR
SPECIFICATION

Tell us your core count, cross-section, and application — our engineering team will confirm the right configuration and send pricing within one working day.

Reply within 1 working day

Free samples for qualification

Cross-reference from any brand

Direct factory pricing — no middlemen